Lizards filmed 'walking on water' 照片:蜥蜴“在水面上行走”
文章来源:未知 文章作者:meng 发布时间:2009-10-14 03:02 字体: [ ]  进入论坛

Remarkable1 slow-motion footage has been taken of two lizards3 that seem to do the impossible - walk on water.


A "Jesus Christ" <a href=lizard2, filmed from above and below the water" width="512" border="0" src="/upimg/091014/4_031403_1.jpg" />
A "Jesus Christ" lizard, filmed from above and below the water

A high-definition film, shot at 2,000 frames per second, shows a brown basilisk(蛇怪) lizard running across the surface of a pond in Belize.

More footage shows how a species of gecko(壁虎) is so tiny that it can walk across a puddle4(水池,水坑) without breaking the water's surface tension.

These amazing feats5(专长,特技) are captured for the BBC natural history series Life.

The group of animals known as basilisk lizards commonly lives along the edge of rivers running through rainforests, eating small insects among the foliage6(美人草).

The lizards need to bask7 in the sun(晒太阳) to warm up each day, which leaves them vulnerable to being caught by predators8(掠夺者,捕食者), such as large birds of prey9 hunting from the air, or carnivores(肉食动物) such as cats living on the jungle floor.

So the lizards have evolved an extraordinary escape mechanism10.

They drop into the water and then run across it, earning the lizards their nickname, the "Jesus" or "Jesus Christ" lizard.

Exactly how they do so is revealed by the slow-motion, high-definition footage taken at 2,000 frames per second.

"Because they run so fast they create a bubble as their feet hit the water and then they push off from this bubble before it bursts," says Simon Blakeney, a producer on the Life series who helped direct and film the footage of both reptiles11(爬行动物).

"They can only run at that speed. If they were going any slower, for example, they wouldn't stay upright, they would slip into the water and would have to swim."

Mr Blakeney and his colleagues filmed brown basilisk lizards (Basiliscus vittatus) running across ponds and rivers in the rainforest in Belize, around 60km from Belize City.

Capturing the footage of the animals in action proved tricky12.

"Around 80% of the time when they are escaping from things, they don't run, they swim. So filming them running was quite a difficult thing in itself."

The lizard has long thin toes that are covered by scales underfoot. These help create the air bubbles that enable the lizard to push off and walk across the water.

Scientists had also previously13 established that basilisk lizards produce massive sideways forces in their running stride(大步), which, perversely14(倔强地), help them stay upright.

Slowing the action of the film to 1/80th of its real-life speed reveals the true spectacle, says Mr Blakeney.

"As the water lifts up it makes this incredible trail of splashes(飞溅的水) behind it, like a pebble15(鹅卵石) dropping into the water.

"Then the lizard has already gone out of frame because they are so fast."


1 remarkable 8Vbx6     
  • She has made remarkable headway in her writing skills.她在写作技巧方面有了长足进步。
  • These cars are remarkable for the quietness of their engines.这些汽车因发动机没有噪音而不同凡响。
2 lizard P0Ex0     
  • A chameleon is a kind of lizard.变色龙是一种蜥蜴。
  • The lizard darted out its tongue at the insect.蜥蜴伸出舌头去吃小昆虫。
3 lizards 9e3fa64f20794483b9c33d06297dcbfb     
n.蜥蜴( lizard的名词复数 )
  • Nothing lives in Pompeii except crickets and beetles and lizards. 在庞培城里除了蟋蟀、甲壳虫和蜥蜴外,没有别的生物。 来自辞典例句
  • Can lizards reproduce their tails? 蜥蜴的尾巴断了以后能再生吗? 来自辞典例句
4 puddle otNy9     
  • The boy hopped the mud puddle and ran down the walk.这个男孩跳过泥坑,沿着人行道跑了。
  • She tripped over and landed in a puddle.她绊了一下,跌在水坑里。
5 feats 8b538e09d25672d5e6ed5058f2318d51     
功绩,伟业,技艺( feat的名词复数 )
  • He used to astound his friends with feats of physical endurance. 过去,他表现出来的惊人耐力常让朋友们大吃一惊。
  • His heroic feats made him a legend in his own time. 他的英雄业绩使他成了他那个时代的传奇人物。
6 foliage QgnzK     
  • The path was completely covered by the dense foliage.小路被树叶厚厚地盖了一层。
  • Dark foliage clothes the hills.浓密的树叶覆盖着群山。
7 bask huazK     
  • Turtles like to bask in the sun.海龟喜欢曝于阳光中。
  • In winter afternoons,he likes to bask in the sun in his courtyard.冬日的午后,他喜欢坐在院子晒太阳。
8 predators 48b965855934a5395e409c1112d94f63     
n.食肉动物( predator的名词复数 );奴役他人者(尤指在财务或性关系方面)
  • birds and their earthbound predators 鸟和地面上捕食它们的动物
  • The eyes of predators are highly sensitive to the slightest movement. 捕食性动物的眼睛能感觉到最细小的动静。 来自《简明英汉词典》
9 prey g1czH     
  • Stronger animals prey on weaker ones.弱肉强食。
  • The lion was hunting for its prey.狮子在寻找猎物。
10 mechanism zCWxr     
  • The bones and muscles are parts of the mechanism of the body.骨骼和肌肉是人体的组成部件。
  • The mechanism of the machine is very complicated.这台机器的结构是非常复杂的。
11 reptiles 45053265723f59bd84cf4af2b15def8e     
n.爬行动物,爬虫( reptile的名词复数 )
  • Snakes and crocodiles are both reptiles. 蛇和鳄鱼都是爬行动物。 来自《简明英汉词典》
  • Birds, reptiles and insects come from eggs. 鸟类、爬虫及昆虫是卵生的。 来自《现代汉英综合大词典》
12 tricky 9fCzyd     
  • I'm in a rather tricky position.Can you help me out?我的处境很棘手,你能帮我吗?
  • He avoided this tricky question and talked in generalities.他回避了这个非常微妙的问题,只做了个笼统的表述。
13 previously bkzzzC     
  • The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
  • Let me digress for a moment and explain what had happened previously.让我岔开一会儿,解释原先发生了什么。
14 perversely 8be945d3748a381de483d070ad2ad78a     
adv. 倔强地
  • Intelligence in the mode of passion is always perversely. 受激情属性控制的智力,总是逆着活动的正确方向行事。
  • She continue, perversely, to wear shoes that damaged her feet. 她偏偏穿那双挤脚的鞋。
15 pebble c3Rzo     
  • The bird mistook the pebble for egg and tried to hatch it.这只鸟错把卵石当蛋,想去孵它。
  • The pebble made a ripple on the surface of the lake.石子在湖面上激起一个涟漪。
TAG标签: water walking lizard footage